COMPATIBILITY OF BROWN BEAR URSUS-ARCTOS AND FREE-RANGING SHEEP IN NORWAY

Citation
Jt. Sagor et al., COMPATIBILITY OF BROWN BEAR URSUS-ARCTOS AND FREE-RANGING SHEEP IN NORWAY, Biological Conservation, 81(1-2), 1997, pp. 91-95
Citations number
18
Categorie Soggetti
Ecology
Journal title
ISSN journal
00063207
Volume
81
Issue
1-2
Year of publication
1997
Pages
91 - 95
Database
ISI
SICI code
0006-3207(1997)81:1-2<91:COBBUA>2.0.ZU;2-5
Abstract
In 1992, the Norwegian Parliament adopted a plan for brown bear Ursus arctos management. The main goal of the plan was two-fold: (1) ensure viable bear populations within five core areas along the border of nei ghbouring countries; and (2) limit the damage caused by bear on sheep Ovis aries grazing on open rangeland which has increased over the last few years. In this study we have examined the possibility of attainin g both these political aims. Sheep losses in title study areas within bear core areas rose considerably during the period 1981-1993, when th e Scandinavian bear population increased by 1.5% a year. We found a si gnificant correlation between the estimated number of bears and the lo ss of grazing ewes in both areas. No such relationship was found in th e control areas (considered to be without bears) adjacent to the study area. We found no relationship between number of ew:es lost and numbe r of ewes grazing. Shooting of bears that presumably killed sheep had no effect on the number of ewes lost during the following season, prob ably because the number of bears killed in Norway was less than the nu mber of bears immigrating from Sweden. Killing more bears is not compa tible with the political aims of the management plan. It is difficult to reach all the political goals under the current situation. The loss of sheep will probably continue to increase unless changes are made i n sheep husbandry methods in the core areas. Alternatively, sheep must be moved out of the areas set aside for the re-establishment of bears . (C) 1997 Elsevier Science Ltd.